* Sulu Archipelago: This includes the islands of Jolo, Tawitawi, and the surrounding smaller islands. It's considered the heartland of Tausug culture and language.
* Zamboanga Peninsula: This region in southwestern Mindanao also has a significant Tausug population.
* Palawan: While less prevalent than in the Sulu Archipelago and Zamboanga Peninsula, Tausug is also spoken in some areas of Palawan.
It's important to note that the Tausug language is spoken by a diaspora community that has spread to other parts of the Philippines and even internationally, particularly in Malaysia and Brunei.